\name{TP53Genome}
 \alias{TP53Genome}

 \alias{TP53Which}

 \title{
   Demo genome around TP53
 }
 \description{
   Returns a \code{\linkS4class{GmapGenome}} object consisting of the
   UCSC hg19 sequence centered on the region of the TP53 gene, with 1 Mb
   flanking sequence on each side. This is intended as a
   test/demonstration genome and can be used, e.g., in conjunction with
   the \code{LungCancerLines} data package.
 }
 \usage{
 TP53Genome()

 TP53Which()

 }
 \value{

   For \code{TP53Genome}, a \code{GmapGenome} object. If this is the
   first time the user has run this function, a side-effect will be the
   generation of an on-disk genome index, under the name

   \dQuote{TP53_demo_VERSION} in the default genome directory, where
   \code{VERSION} is the version of the TxDb package providing the bounds
   of the P53 gene.

 
   For \code{TP53Which}, a \code{GRanges} of the extents of the TP53
   gene, translated to the space of \code{TP53Genome}.

 }
 \author{
   Michael Lawrence, Cory Barr
 }
 
 \examples{
 TP53Genome()
 }